Plow disk grinder



'OKIL Q H A. MOORE vPLOW DISK* GRINDER l Filed une e, 1944 s sheets-sheet 1 Eil 3yr/venice l l Hl:

Stroe/mq Oct. 9, 1945.v H. @MOORE PLow DISK' GRINDER Filed June e, 1.944

3 Sheets-Sheet 2 .Ha/.7770ore,

2 gaged by the threaded nut 53 and whose opposite end bears on the bolt 41. Numeral 54 is a second nut which threadedly engages the bolt 49. The

`arrangement of the parts is such that the spring 52 continuously urges the horizontally arranged bolt 49 in a leftward direction which latter action causes counterclockwise rotation of the crank arm 5| and sleeve 32.

Inasmuch as the plow disk A is mounted on the pendulum 33 both it and the pendulumtend to be forced to the Ileft or in a counterelockwise kdirection about the pivot of pendulum shaft 32.

The pendulum may be adjusted by loosening the headed screws 28 and 29 and sliding the *entire pendulum along the stringers 5 in either-direc#- tion. It will be noted that the pulley 39, engages the upper and lower reaches of the belt I1 in ,.3 dulum in driving relation with said belt, said lum extending beneath said last named means.

any position of adjustment of the pendulum'lnthrough the pulley 31.V By means: roflthegears within bearing block 35 shaft I4Ilis;rotatably driven. Plow disk A' is' therefore continuously drivenby means of theysame sourcefy of f power which drives` the grinding wheels.` i

` It will be noted that two grinding wheels are provided. .The purpose of the .two-wheels is 'to balance eachother on the shaft `I I. :.After suilif cient wear on wheel I2, whichis,V the grinding wheelmounted to -grind the plow disk, this wheel may be taken 01T and its position exchanged with that of grinding wheel I3. AIn i-,hefordinary-` use of the wheel I 3, it may be used for` general utility purposes.,

'The shaft 4'I is provided with ay shaftcoupling 55 in order that diiferent'flengthishafts maygbe used to thereby adjust therelative position in a vertical direction of the work-supporting spool 43.

The construction of the' pendullum 33 is such that it is substantially balanced, about the pivot point 32. VHowever Zthe greater portion lvof `the weight is below the pivot 32. It will be'V understood that bythe present: means itis .possible .to grind a disk which is not concentric with the ,center hole of the disk, thus saving disk stock.

It will be further understood that the -pendu lum construction permits grinding at anyangle, i. e. the disk may be Vpresentedat a plurality of angles to the grinding wheel. I2 by adjustment of the pendulum by means of the sliding brackets 26 and 21 toward or away from` the"saidwlieel. Afterthe proper adjustment has been made the knurled screws are tightened'and the pendulum may be manually swungj'around the Vpivot'32 or adjustment may be `made ofthe threaded nuts 53 and 54 to cause thexwork to be forced by the spring52 in the direction` of the rotatinggrinding wheel, and held against the wheel during the grinding operation. f

It is to be understoodthat the form of the invention shown and described is to be taken as a preferred example of the same :and that various changes of the shape, size and arrangement of parts and accessories 'may be resorted-,to without departing from the spirit of the 'invention or the scope'of the claims. l 'f' driven pulley being mounted on said means for pivotally mounting said pendulum, said pendu- 2. In a disk grinder, a framework, stringers .forming part of -said framework, a grinding wheel mounted on said framework, means for rotating 'said lgrinding wheel, a pendulum having a lower freely swingable end, means for pivotally mountingfsaid ypendulum on said framework, a disk holder mounted on said pendulum, means for securing said pendulum on said stringers'diiferent distances from said grinding wheel, and means drivenfrom said grindingwheel for rotating said disk holder, said last-named means including a horizontally arranged belt, a pulley Von said grinding wheel and a second 'pulley on said pendulum adapted to be engaged by and driven from said belt, said belt having substantially parallel runs adapted'to move in opposite directions, said pendulum pulley being mounted to be drivingly engaged by said parallel belt runs at different distances along the Ibelt runs from said grinding wheel,k in accordance with adjustments made by said pendulum securing means.

3.`In a disk :grinden'a framework, stringers forming part of said framework, a grinding wheel mounted on said framework, means for rotating said grinding wheel, a pendulum having a lower freely swingable end, means for pivotally mounting said pendulum on said framework, a disk holder mounted on said pendulum, means for securing said pendulum on said stringers different distances from Vsaid grinding wheel, and means driven from 4said grinding wheel for rotatingsaid'disk holder, said last-named means including a pulley driven by said grinding wheel, a second pulley on said pendulum, and a belt connecting said pulleys, said pendulum pulley being located vintermediate the length of. said belt, and adapted to engage said belt at different distances-along the belt runs ,from said grinding wheel as said pendulumis adjustably secured at different distances from said grinding wheel.

4. In a disk grinder, a framework, stringers on saidV framework, a grinding wheel mounted thereon, means for rotating said grinding wheel, a pendulum having a vlower freely swingable end, means for pivotally'mounting said pendulum on said framework, a disk holder mounted on said pendulum, means for securing said pendulum on said stringers different distances from said grinding wheel, and means driven fromr said grinding wheel for rotating said disk holder, said lastnamed means including a horizontally arranged belt, a pulley on said grinding wheel, a second pulley on said pendulum adapted to be engaged Iby and driven from said belt, and a third pulley located `adjacent the bottom of said pendulum anda shaft ldrivenby said last-named pulley, said shaft being'connected to said disk holder.

" 5..In a disk grinder, a framework, stringers forming part of said framework, a grinding wheel mounted on said framework, means for rotating said grinding wheel, a pendulum, having a lower freely swingable end, means for pivotally mounting said pendulum on said framework, a disk holder mounted on said pendulum, means for se- 'against said grinding wheel.

6. In a disk grinder, a framework, said framel work having a horizontal surface, a grinding wheel mounted on said framework, means for rotating said grinding wheel, a pendulum having 'a lower freely swingable end, means for pivotally mounting said pendulumon the horizontal surface of said framework,adisk holder mounted on said pendulum, means for adjustably securing said pendulum on the horizontal surface of said framework different distances from said grinding wheel, means driven from said grinding wheel for rotating said disk holder, said last-named means including a pulley on said grinding wheel, a plu-l rality of pulleys on said pendulum la belt for drivingly connecting said grinding Wheel pulley and one of said pendulum pulleys, one of said pulleys being driven kby said belt, a second belt, said second belt being drivingly connectedv to others'of said pulleys a shaft on said pendulum, and means attaching said disk holder to said shaft.

'7. In a diske'grinder, a framework, a grinding wheel mounted thereon,r a pendulum having a freely swingable end, means for pivotally mount#- ing said pendulum on said framework, a disk holder mounted on said pendulum, means for adjustably securing said pendulum different distances from said grinding wheel, means for drivingly connecting said grinding wheel and said disk holder including an endless flexible drive y means, a driven means on said pendulum andv directly connected by said flexible drive means to said grinding wheel in driving engagement with said grinding wheel, and a driving connection means from said driven means extending to said pendulum end and from the same to said disk holder.

8. In a disk grinder, a framework, a grinding wheel mounted thereon, means for rotating said grinding wheel, a pendulum having a lower freely swingable end, means for pivotally mounting said pendulum on said framework, a disk holder mounted on said pendulum, means for adjustably securing said pendulum different distances from said grinding wheel, and means for rotating said disk holder including a belt having substantially parallel runs, pulleys at opposite ends of said belt,

means for driving said belt from one of said pulleys, and a third pulley located intermediate said first-named pulleys and being mounted to simultaneously engage the substantially parallel surfaces of said belt and being driven thereby, and a shaft driven by I said intermediate pulley in driving relation with said disk holder.

9. In a disk grinder, a framework, a grinding wheel mounted thereon, .means for rotating said grinding wheel, a pendulum having a, lower freely swingable end, means for pivotally mounting said pendulum on said framework, a disk holder mounted on said pendulum, means for adjustably securing said pendulum diierentdistances from said grinding Wheel, and means for rotating said disk holder including a belt having substantially y parallel runs, pulleys 'at opposite ends of said wheel mounted thereon, means for rotating said grinding wheel, a pendulum having a lower freely swingable end, means for .pivotally mounting said pendulum 'on said framework, a disk holder mounted on said pendulum, means for adjustably securing said pendulum different distances from said grinding wheel, and means for rotating said disk holder including a belt having substantially parallel runs, pulleys at opposite ends of said belt, means for driving said belt from one'of said pulleys, and a third pulley located intermediate said first-named pulleys and being mounted to simultaneously engage the substantially parallel surfaces of said belt and being driven thereby, a

shaft driven by said intermediate pulley in driving relation with said disk holder, and adjustable means for maintaining said belt under tension.

HUBERT A. MOORE. 

